Refrigeration system and equipment advantages of constant temperature and humidity test chamber

April 15, 2021


The constant temperature and humidity tester is used to test the performance of materials in various environments and to test various materials for heat resistance, cold resistance, dry resistance and moisture resistance. Suitable for the quality of electronic, electrical, communications, instrumentation, vehicles, plastic products, metals, food, chemicals, building materials, medical, aerospace and other products. Constant temperature and humidity test machine In order to ensure the test machine's requirements for cooling rate and minimum temperature, the constant temperature and humidity test machine refrigeration system uses a refrigeration system composed of imported compressors. The refrigeration system has reasonable matching, high reliability, convenient use and maintenance, etc. advantage.

Description of the refrigeration system of the constant temperature and humidity test chamber:

The working principle of the constant temperature and humidity test machine is the reverse cycle. The cycle consists of two isothermal processes and two adiabatic processes. The refrigerant is adiabatically compressed to a higher pressure by the compressor, and the exhaust is consumed. The temperature rises, after which the refrigerant is isothermally exchanged with the surrounding medium through the condenser to transfer heat to the surrounding medium.

After the refrigerant is adiabatically expanded by the shut-off valve, the temperature of the refrigerant is lowered. Finally, the refrigerant absorbs heat from the higher temperature object isothermally through the evaporator, so that the temperature of the object to be cooled is lowered. This cycle is repeated to achieve the purpose of cooling. The design of the constant temperature and humidity tester refrigeration system uses energy regulation technology, and an effective treatment method can ensure the effective adjustment of the energy consumption and cooling capacity of the refrigeration system under the normal operation of the refrigeration unit. The operating cost of the refrigeration system is reduced to a more economical state. The constant temperature and humidity tester tests the heat resistance, cold resistance, dry resistance and moisture resistance of various materials. The constant temperature and humidity tester can select the Chinese or English LCD display touch screen screen, which is easy to operate, easy to edit, and user-friendly.

It displays complete system operating condition related data, execution and setting program curves. An abnormal situation occurs during operation, and the screen automatically alarms to show the cause of the fault and provide troubleshooting methods. High-quality appearance, the body adopts arc shape, the surface is treated with matte stripes, and the flat surface has no reaction handle, which is easy to operate, safe and reliable. The rectangular laminated glass viewing window can be used for observation of the test product during the test. The window has a sweat-proof electric heater device to prevent condensation of water and water, and the high-intensity PL fluorescent lamp maintains the internal illumination. The double-layered airtightness of the door is tight and can effectively isolate the internal temperature leakage.

Advantages of constant temperature and humidity test chamber:

It can save the space of the laboratory; the double-layer space can be controlled independently. Due to the large space, it is suitable for small and large quantities of products, which can be tested in batches. Because the layer constant temperature and humidity body shares a shell and a refrigeration system, the cost Relatively low; the upper and lower constant temperature and humidity tester can be customized according to the customer's needs, the size is more flexible, the lower layer can be smaller than the upper layer or the lower layer is larger than the upper layer. Mainly based on the size of the customer's unused products, try to be reasonable and not waste.


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